+179 \(M\) is the midpoint of \(\overline{PQ}\) and \(N\) is the midpoint of \(\overline{PR}\), and \(O\) is the intersection of \(\overline{QN}\) and \(\overline{RM}\), as shown. If \(\overline{QN}\perp\overline{PR}\), \(QN = 12\) ,and \(PR = 14\), then find \(OR\)
Please help, thanks.
